/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.kie.api.definition.process;

/**
 * A NodeContainer contains a set of Nodes
 * There are different types of NodeContainers and NodeContainers may be nested.
 */
public interface NodeContainer {

    /**
     * The Nodes of this NodeContainer.
     *
     * @return the nodes
     */
    Node[] getNodes();

    /**
     * The node in this NodeContainer with the given id.
     *
     * @return the node with the given id
     */
    Node getNode(WorkflowElementIdentifier id);

    /** 
     * the node in this NodeContainer with the give unique id
     * @param nodeId
     * @return
     */
    Node getNodeByUniqueId(String nodeId);

}
